Let’s start with a confession: for a long time, “cardio” meant one thing — running until you couldn’t talk, sweating through your shirt, and feeling a little bit destroyed by the end of it. If you weren’t wrecked, it didn’t count.

That belief didn’t come from nowhere. It came from decades of fitness culture that measured a workout’s worth by how much cardio you completed. And for a lot of us, that belief is still running the show — even though our bodies, our hormones, and our age & stage of life have changed the rules completely.

This month, we’re taking a real look at cardio: what it actually is, what the research says, and what your body — specifically your midlife body — actually needs. Not what worked when you were 25. Not what the influencer with zero body fat and zero kids is doing. What works for you, now.

Myth #1: More Cardio Is Always Better

This is the biggest one, and it’s the one costing women the most. Somewhere along the way, cardio became a math problem — burn more calories, do more minutes, add another class. But your body isn’t a calorie calculator. It’s a nervous system that’s listening to everything you do to it.

Remember our conversation about cortisol back in June? Chronic, unresolved stress keeps your body in a low-grade state of alarm. Excessive cardio — especially the moderately-hard, every day, no-real-recovery kind — can be exactly that kind of stressor. More isn’t automatically better. Sometimes more is just… more stress.

Myth #2: If You’re Not Drenched, It Didn’t Work

Sweat is not a scoreboard. Some of the most valuable cardio you’ll do this month will feel almost boring. You’ll finish it thinking, “that couldn’t have done much.” We’re going to talk about exactly that kind of training next week — and why it might be the most underrated tool you have.

Myth #3: Cardio Is Punishment for What You Ate

This one runs deep, and it deserves to be said plainly: your workout is not a penalty box. If cardio only shows up in your life after a “bad” meal or a weekend you feel guilty about, that’s worth noticing — with curiosity, not judgment. Movement that comes from punishment rarely lasts. Movement that comes from wanting to feel powerful in your own body? That sticks.

Myth #4: Fasted Cardio Is the Secret to Fat Loss

For women navigating perimenopause and menopause, this one can actually backfire. Training on empty, especially at a harder effort, adds another stressor on top of a system that may already be managing fluctuating hormones and disrupted sleep. It’s not that fasted movement is dangerous for everyone — it’s that it’s not the magic key it’s been sold as.

So What Actually Works?

Here’s the truth we’re going to unpack over the next three weeks: cardio isn’t one thing. It’s a spectrum of intensities, and each one talks to your body differently. 

There’s the steady, conversational pace that builds your engine (that’s Zone 2 — next week’s topic). 

There’s the short, hard effort that builds power (sprint intervals and true HIIT — week three). 

And there’s the murky middle zone that most women live in by accident, without ever meaning to — the zone we’re calling No Woman’s Land.

Understanding the difference isn’t about adding more rules to your life. It’s the opposite. It’s permission to stop guessing, stop punishing, and start training with intention.

This week, your only job is to notice. What does your current cardio actually look like? How does it feel — energizing or depleting? Are you moving because it feels good to be in your body, or because you think you have to earn something? No changes yet. Just awareness. That’s always where we start.

Want cardio and strength training built into a plan that actually fits your life? The Strength Collective meets live, twice a week — and there’s a free monthly class if you want to try it before you commit. I’d love to have you.